JPS5838762Y2 - Busbar connection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a connection device for a forced cooling type phase separation bus used for power supply and demand.

As is well known, phase-separated busbars are used as devices for connecting devices such as generators and transformers.

The structure consists of a conductor and an outer sheath surrounding it. When carrying a large current of several hundred amperes, the conductor is cooled with a cooling medium to make it smaller. In this case, it is hollow as shown in Figure 1. A common method is to cool the conductor 11 by flowing a cooling medium 12 under a certain pressure into the inside of the conductor 11, and water is mainly used as the cooling medium.

In the case of such a water-cooled phase-separated busbar, the following movable connections are provided for the purpose of absorbing vibrations of other equipment and absorbing dimensional errors due to uneven ground subsidence.

One is to mount the movable conductor 13 directly into water as shown in Figure 2, and the other is to mount the movable conductor 13 as self-cooling as shown in Figure 3, but in the case of Figure 2. Conductor 1
1.11' and the movable conductor 13 may be corroded by water, or the contact resistance of the connection may increase.

In the case of Fig. 3, the movable conductor 13 is self-cooled, so a conductor with a very large cross-sectional area is used in consideration of current capacity, the shape of the connection part is enlarged and the number of movable conductors 13 is increased, or the movable conductor 13 is self-cooled. In order to reduce the number of cold parts, the movable conductor had to be made extremely short, resulting in problems such as not being able to achieve the required mobility.

SUMMARY OF THE INVENTION An object of the present invention is to provide a bus connection device for a forced cooling type phase-separated bus bar, which has a movable connection part that facilitates cooling of the movable conductor and provides the necessary mobility.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

As shown in FIG. 4, a flange 14 is welded to the end of the conductor 11.11'.

The flange 14 has a screw 15 for screwing the flexible conductor 13.
and then cut the nozzles 16.1 for the number of flexible conductors 13.
7 will be provided.

Nozzles 16 and 17 are made of flexible material (e.g. polyethylene).
When installing the tube 18, the tube 18 is the flexible conductor 13.
Wrap it around.

In addition, in the figure, the portion wrapped around the movable conductor 13 is shown by a dashed-dotted line to avoid obscurity.

Further, although the tube 18 is omitted in the lower part of the figure, it is similarly wound around the movable conductor 13.

If the water 12 under a certain pressure is allowed to flow in the direction of the arrow from the conductor 11 side, the water 12 will come out of the nozzle 16, pass through the tube 18 wrapped around the flexible conductor 13, and flow from the nozzle 17 into the conductor 11. Tube 18 wrapped at this time
The flexible conductor 13 is cooled by the water 12 passing through it.

Thereby, the length of the flexible conductor 13 can be freely changed as required.

In addition, the flange 14 and tube 1 shown in the above embodiment
8 may be of any shape, such as round or polygonal, and a greater cooling effect can be obtained by attaching a plurality of nozzles and winding a plurality of tubes depending on the current capacity of the flexible conductor.

Furthermore, although water has been described in the above embodiments, similar effects can be obtained using other cooling media (eg, oil and gas).

As described above, according to the present invention, the flexible conductor can be cooled without corrosion of the plating at the connection part, and without the need to increase the cross-sectional area, increase the number, or shorten the flexible conductor. This makes it possible to obtain a connecting portion with sufficient flexibility as required.

[Brief explanation of the drawing]

Figures 1a and 1) are side and front views of a typical phase-separated busbar, Figures 2 and 3 are cross-sectional views of a conventional connecting device, and Figure 4 is an example of a busbar connecting device according to the present invention. It is a sectional view showing an example. 13... Flexible conductor, 16.17... Nozzle, 18... Flexible tube.

Claims (1)

[Scope of utility model registration request] In a device that connects a plurality of hollow conductors into which a cooling medium has flowed, a flange that closes the connected ends of each of the hollow conductors, and a flexible flange provided between the connected ends of these hollow conductors. a conductor, and a nozzle provided in each of the hollow conductors connected in correspondence with the number of the flexible conductors;
A busbar connection device comprising a flexible tube that communicates between the nozzles and is wound around the flexible conductor.